God is faithful, by whom you were called into the fellowship of His Son, Jesus Christ our Lord.
1 Corinthians 1:9 (NKJV)

So, then the question for Christians is:
What has been entrusted into our care?
What are we responsible for managing?

Faithfulness.
Maintaining faith or allegiance; showing a strong sense of duty or conscientiousness.

In biblical Hebrew, “faith” and “faithfulness” are grammatically related.

Faithfulness.
Faith and faithfulness are logically and linguistically
one in the OT and NT.

Faithfulness.
In spite of Israel’s faithlessness, God showed himself
to be absolutely reliable. His faithfulness is great

The pinnacle of faithfulness in the Bible is seen in the work of Jesus Christ, who showed himself faithful to his Father (Heb 3:2) and in His witness (Rev 1:5).

His

is known to be:
• Great. (Lam. 3:23)
• Established. (Psalms 89:2)
• Incomparable. (Psalms 89:8)
• Unfailing. (Psalms 89:33)
• Infinite. (Psalms 36:5)
• Everlasting. (Psalms 119:90)
• Should be pleaded in prayer. (Psalms 143:1)
• Should be proclaimed. (Psalms 40:10)

or revealed through:
• In his counsels. (Isa. 25:1)
• In afflicting his saints. (Psalms 119:75)
• In fulfilling his promises. (1 Kgs 8:20, Heb. 10:23)
• In keeping his covenant. (Deut. 7:9)
• In executing his judgments. (Jer. 23:20)
• In forgiving sins. (1 Jn. 1:9)
• To his saints. (Psalms 89:24, 2 Thess. 3:3)
• Saints are encouraged to depend on. (1 Pet. 4:19)

Should be

(Psalms 89:5):
• In Provision. (Mt 6:30, Php 4:19)
• In Protecting. (Isa 54:17)
• In empowering. (Acts 1:8)
• In Compassion. (La 3:22, Jn. 17:4, Heb 2:17, 3:2)

You are invited into a relationship with God—If you have not yet committed your life to Jesus—you need to do so today! For everyone who calls on the name of the LORD shall be saved.
Romans 10:13

In closing…
Because God is faithful, we can put our complete trust in Him.